Automatic gem-setting machine



Aug. 21, 1923.

D. LOMBARDI AUTOMATIC GEM SETTING MACHINE Filed April 19,

1920 4 Sheets-Sheet 1' aw 5m. @m 9 M00 W D. LOMBAFZD! AUTOMATIC GEMSETTING MACHINE Aug. 21, m3.

ljiled April 19, 1920 4 Sheets-Sheet 2 Aug. 21, 1923.

' 1&65446 D. LOMBARDI AUTOMATIC GEM SETTING MACHINE Filed April 19, 19204 Sheets-Sheet 4 substantially on line 8-8011 Fig. 1;

in said Fig. l;

ra-tus shown in Fig. 1

Patented Aug. 21,1923.

I esirsafi rar a area. i as earner norm-moo IL MBA DI, on Bass 'BGSTGN,massaonesn'rrs. i

arrtro vra'rrc GEM-SETTING MACHINE.

Application fiieaa rn 1e, i920. Serial No. 374595.

T all whom itmay concern:

7 Beit known that I, Domenico LOMBARDI, a subject of the King of Italy,and a resident of East Boston; in the county of Sutfolk and State-of lilassachusetts,,have in vented a new and useful Automatic Gem- SettingMachine; of whichthe following is a specificatiom"reference being had tothe accompanying four sheets of drawings, forming part thereof; r

The object of my in ention 'is to .rovide a simple andre'liahle machinetorsetting stones or gems automatically in finger rings, the machineheingadapte'd to operate by hand or power,*andparticularly applicablefor turning out large quantities of the cheaper and less-expensiverings.

Other objects and advantagesor the inventionwill moretully appear fromthe following description thereof The inventionconsists of he novelstructural features and combination or" elements hereinafter describedand particularly pointed out in the claims appendedat the'toot hereof. pI

To enable the const-ruction and operation of the invention-to be clearlyunderstood by those skilled in the art, reference is hadto theaccompanying drawings illustrating one of several forms in which theinvention may be concretely embodied. V

- Fig. 1 represents a fragmentary side, eleyational view of an apparatusembodying the within invention. l i

Y -'F 2 represents a plan View taken substantiallyon line 2-2 on Fig. 1;

' Fig. 3 represents. a fragmentary front elevational View of theapparatusshown in Fig. 4 represents a timing diagram or"- thedifterentfunctions embodied in the cycle or" operations in the Withindescribed apparatus;

f F represents a sectional view taken substantially on. line 5-5.on'Fig. 1, but shows-the ring plunger in the down-position, instead ofthe raised position shown Figerepresents a. plan view of the appa- IF 7represents a sectional View taken 'onT-line 77 on Fig. 1;

Fig. 8 represents a sectional view take Fig. Qrepresen-ts asectionalview taken on line 9.9-on Fig. l;

mounted in said support 21.

Fig. 10 represents an enlarged, fragmentary, sectional and partelevational view of the stone or gemteeding magazine mechanism of thewithin described apparatus.

Fig. 11 represents an enlarged, fragmentary, sectional and partsideelevational 'view of the gem setting and magazine section of theapparatus taken substantially on line 1l-ll on Figs. 3 and 10;

Fig. 12 represents a sectionalview taken on line 12-12 on Fig. 10;

Fig. .13 represents apart of the View shown in Fig. 11, but shows themagazine mechanism inthe act of discharging a. single stone into thering withwhich the same is to he set;

Fi 1a 1 1 n snownin lug. 15, but slows L1G magazine mechanism advancingthe column of stones therein, and the setting mechanism ready to engagethe prong tips of the ring for bending the prongs to set the stone inthe ring; and

Fig. 15 represents a plan View of the setting mechanism of theapparatus.

The terms employed herein are used 1n the generic and descriptive senseto designate the elements illustrated, and are therefore not primarilyintended as terms of limitation. I

Like. numerals refer to like parts t irougln out the several views ofthe drawings.

The numeralQO represents the main casing of the apparatus which ispreferably provided with the upright support 21 111 the rear thereofwhich may he mad 1ntegral therewith or separate and rigidly securedthereto, according as may he desired. Said casing is. preferablyprovided with suitable hearings for rotatahly supporting the drive shatt22, the cam-shaft; 2 3, and the turntahle-shaft 24, and is furtherprovided with means for supporting the upright stud 25 which rotatahlysupports the driving mechanism of the intermittent devi e. as theGenevagear mechanism showemployed in the drawing, for timing and represents asimilar view to that 26; said floating'yoke member being also slidablymounted in said upright support 21 and normally set ad acent to saidplunger member 26 to reciprocate therewith but allowed to lag behindsaid plunger member,

when occasion requires it, by the expansion spring 32 which is providedon the stud r for the purpose.

35 represents the magazine bracket which is rigidly mounted on andsecured to the top of theppright support 21, asshown "1(Figsw1 and 3),and provided with the parallel bearings for rotatably supporting themagazine feed tripper c'am shafts 36 and 37, which are respectivelyprovided with the sprockets 38iand 39 in the rear thereof and the camslOand all at the front thereof; said sprockets and cams. being securedto said-respectiveshafts 3G and 37 for rotating therewith. Said bracket35 is fur-- therprovided'with the vertical magazine bearing 42, which isbored to accommodate the removable magazine tube 43 which is heldtherein insecnred position therewith by means of'the winged. set screw44 provided in the bracket 35 for the purpose. 'Sa id bracket alsoprovides the supports 45 for the tripper pivot-studs e6 which pivotallvsupport the magazine trippers 47 and 48 on said bracket, and which areactuated, respectively, by the tripper cams ac andfll 'and held tofrictionally engage therewith by the spring mcmbers l-Q and 50,respectively.- V

Said trippcr members as. each preferably provided with the intermediate,elongated openings 51, as shown in Fig. 11, and with the ad ustablebushings 52, which thus permit of adjustment of said tripper membersindependently and in relation to each other and in relation to the fixedpivot-studs 416, the purposes of which adjustment will be hereinaftermore fully explained. I Said tripper members 47 and 4-8 are eachprovided at the lower ends thereof with the forked fingers iifi and 5respectively, which project into the magazine tube 43 through slotsprovided therein for the purpose the bottom thereof, the forked fingersstraddling the stones or gems above the p'oint at the bottom, asindicated in Figs.

10 to 12, inclusive.

represents the plier bracket of the machine, which may be made integralwith 7 the upright support 21, or separate and rigidly secured theretoto form part thereof; said brackets being provided with a centralopening 61 which centers with the magazinetube center, as shown inFig.1, and carriessecured thereto the cluster of radial plier. unitscomprising the forked Geneva '"Qb'rackets (SQ-which pivotally supportthe pliercr bell-crank-cam triggersi63' therein,"

. prongs in on the stone S to secure the same inset position with thering. Said triggers are preferably bevelled off laterally at the plierpoints, as shown in Fig.' 15,, to form a complete closure to insureengagement with all of the prongs P of the rin -This complete closurelofthe; plierpoints willlocate the prongs althoughthe same maybe slightlyoutoftrue, aszmight sometimes be the case. 'The actuating ends 65 ofsaid triggers j 63 are preferably provided with the end slots orrecesses 66, which interlock said actuating ends 65 with the actuatingring 67, wh ch ringin turn is carried bythe floatmg yoke member-31 andis secured thereto to form a part thereof.

The drive-shaft: .ZQ carries therewitlr the worin-gear lO (Fig.1) withinthecasing 20," and thepuiley or drive-wheel 71 outside said casing20,.as-sl1own in Fig.3. The worm-gear 7 engages Withth'e worm-wheel 2,which, together. wlththe ring chuck cam 73 and the Geneva drive-gear 74as well as .the cam 29, are all mounted 'onthe camshaft 23 and are allsecured thereto to rotate therewith. The gear 74, which is a bevel-gear,engages with the bevel-gear 75 (Big. 1) which 1s mounted on the stud 257 79 isprovided with the locking cam sections 80 andthe intermediate;and radial slots 81, and forms a partfof the so called intermittentmechanism hereinabove referred to, l

represents the magazine drive sprocket which drives the magazine trippercam sprockets 38 and. 39 through the. endless sprocket chain 86'engaging with same, as indicated in Figs. 1 and 3.

90 represents the turntable of the Inachine, whichin the drawings isshown prm vlded with asetof four rmg chucks spaced 90 apart from. eachother. The turntable 90 is mounted on theturntable shaft 24' and r issecured thereto to rotate therewith. Said turntable is provided withthechuck bosses 91 which are bored to accommodate the ring chuckplungers 92, which are keyed with saidchuck bosses 91 to be held againstturninafter 'more' fully described. The plunigersl92 are preferablyforked at the bottom,

as shown in Figs. 1 and 3, and are provided "with the cam:wiper-rollersz93 which engage a in F ig,1., Said plungers 92 are pref--V erably provided atthe top with the flanges 'ring chuck-mechanisms, asshown in Fig. 1

:94 wlnch bring. up against the turntable .90

when'the plungers 92 are in their lowest positions, and. are alsopreferably recessed above the flanges :to accommodate the ring engagingclips 95 which are pivoted at 96 and provided with the rlng gripp ngfingers 97 Which jen a e the rin s R- as shown in i O D P:

Figs-1, 3 and 11, and are frictionally held or gripped thereagainst :bythe spring 98 provided for the. purpose, 99 represents the offset ringsupporting shoulder pro;

vided :on each of the ring chucks, which shoulder is providedmwith theringc'entering nipple 100 in the top thereof and which fits the openingin the ring setting; said 7 nipple 100 being positioned to. lie on thevertical center line of the magazine and pller mechanisms f the machinewhen positioned in the 5X or stone. setting position of the machine, aslndicated in F gs, 1 and 11. 101represents the actuatmg end-of :the

clip 95, and 102represen'ts the expansion springwhich is carried on thering chucks of: the'turntable 90, and which; spring engaging withtheplunger collar 103, normally tends to hold said ringichucks int 1e downposition but yields to the lift of the cam 1.04 represents the casinghood which isshaped toenclose theturntable and 7 and may be secured tothe casing 20 in any suitable manner-V to form a part thereof; a

- Fig. 4 represents timingdiagram presenting the cycle of operations ofthe within described machine and indicating the Sev- 7 'eral functionsthereof, as will be hereinafter more fully explained.

:Having thus described the parts of my -invention in=detail,"the mannerin which thesame may be'op'erated is as follows: It will be first notedthat the turntable as designed in the machine hereindisclosed -'istuned, through the medium ofthe Geneva intermittent mechanism, tointermittently "make a quarter of a turn and then to be locked during aperiod; while on the other hand, during said turning and locking periodsofthe turntable, the cam wheel and the cam 73 areea'ch allowed to make acomplete turmthat'is one revolution.

Secondly, the magazine tube 43 is supplied with the column ofstonessetitherein, with the'points. downward as shown in .Figs; 10

and 11. Thirdly, the magazine 'tripper fingers 47 and 48 are adjusted,through the adj ustable pivotingmeans- 52 p'rovidedthereon, to; supportthe two bottom-stones S substantially adjacent to each other in' the byengaging with the second or adjacent stone thereto, as shown in saidfigures; it being noted that the action of the tripper cam 40 againstthe tripper finger 47, as indic'at-ed in Fig. 14, will actuate thetripper finger 47 and thus dropthe column of stones on to the forkedsection 54 of the lower tripper finger 48,as shown :in Fig. 14. Thus thefunction of the set of tripper fingers 47 and 48'is to discharge asingle stone at a time from the magazine tube 43,"as the lower one,

for example, which is accomplishedby actuating the finger 48, asoccurswhen the trippercam 41 trips the same. Said lower stone, whilesupported in the tube 43, is relieved from the weight of the column ofstones there above, the supporting feature. therefor provided, throughthe medium of the forked section 53 of the upper tripper finger 47engagingwith the second stone, as shown in Fig. 13. With the lower stonethus discharged semen magazine tube 43, as indicated in the latterfigure, the-forked section 54 of thetripper finger '48 is brought backinto supporting position in said magazine tube43, as shown in Fig. 14,while the upper tripper finger is withdrawn from with n the tube 43 topermit the column to drop in the tube; thus bringing the lower stone inthe column "into set position with the forked section '54 of the lowertripper finger 48. Thereafter the forked sectionv 58 of the uppertripper finger 47f is brought back into position within the tube 43, asindicated in Fig; 10, when 'thelower stone, as'shown there, is supportedin the tripper finger 48, while the column of stones above the same inthe tube 43 is sup ported on the tripper finger 47 again. This operationis repeated regularly during the running of'the machine, and is timed todeliver a stone-S to each ring as the rings in tl1eturntable' chucks,which are supported on the ofi'set sections 99 of the plunger's 92 andlocked by the clips 95 in position with said chucks, reach'the settingposition which is indicated X in Figs. 1 and 11.

With the stone feeding mechanism thus described, the machine operates asfollows: The turning of the pulley 71, which may be accomplished byhandor by power, accordgear M, the latter engaging with the gear 75gwhichturns the Geneva intermittent drive-wheel 76, whichin turnintermittently rotates the turntable througlr the-star wheel '79 throughthe angle of 90, the turning direction of the several parts justreferred to being indicated by the small arrows shown 'ZGduring theremaining,three-quarters of a turn to said drive wheel 76. a v 1 Theoperator is preferably StiltlOIlChlIl front of the machine in a positionwhich enables him'to readily remoye the rings.

from the turntable chucks which come from the setting position-ofthe-machine and which rings-ha e the stones already set therein; itbeing :noted that the mere -de-' :pression of the "actuating end- 101 ofthe clip -95 against the tension of the spring 98,will permit the ringto be removed from the turntable ring chuck. In thesame manner,

7 the blank setting or ring B may be detachablyset and coupled in saidchuck, as shown inFigs. 1 and '11, previous to being advanced to the Xposition there shown,

when'the cam 73 will lift'the plunger 92 against the action of theplunger expansion track 28 in said cam' 29; is indicated, that springs102, which will thus bring and support the ring in receiving; positionin relation to the magazine tube 4'13 and within the range of the stonesetting mechanism of the machine. The ring chuck cam 7 willihold thechuck in the uppermost posit1on, as rep-- resented by X inFig. 1, forsubstantially 180, as will be understood from areference to the shape ofthe cam shown in Fig. 3. .lVith the chuck thus raised, the tripper 'cain11 engages with the tripper finger e8 against the action of the spring50, which results in releasing the-lower stone S, as shown in Fig.13,whereupon saidstone S drops into the open setting or prongsPTof itssupporting position in the magazine tube 453, as shown in Fig. 14:, andthe other tripper finger 17 then acts by reason ofthe tripper cam 40engaging therewith andlactuating the same against a spring 49, whichresults in releasing the forked member 53 7 from the stones in themagazine tube 43, as shown in Fig. 14, whereupon the column of stones isallowed to drop so that the lower .stonefthereof engages with the forkedsection 5 1 of the tripper finger 48. Thereafter, the tripper finger 47is brought back into engagement with the stones in the magazine tube l3and assumes the, position asshown in Fig. 10, wherein it supports thesecond stone in the tube with. the'colu nn thereupon; l

\Vith the stone S thus set of the ring, as just explained, the nextfunc' tion of the machine is to set the stone in the ring, and consistsof bending over the prong tips in relation to the top or face of thestone and engagingsaid prongs with the. stone to secure same within thesetting of the ring." This I functionis accomplished in the followingmanner: It beingremembered that V "and stationary, while onthe otherlianjd the yoke member 31', which carries the trigger actuating ring 67,is'movable, up and down,

and. thus throughits connection with: the

actuating endsof the triggeri -members '63, effects an oscillatingmotion tosaid trigger members about "said. fixed and station-.'

ary pivot-points thereofQ. Said yoke mem-' ber31 is supported in theframe 21, as here-.

inbefore described, to yield a reciprocating motion, said motion. beingefiectedthrough the coupling of saidyoke member 31 with thereciprocating plunger 26which is actuated by the cam 29 through theengagement of the plunger roller 27'with the. cam track 2-8 thereof.

It will be noted in Fig.3, wherethe, cam

a portion of said track islaid out on variable and contractedradii'inrelation to the center of the cam shaft 23 whereby the as shownin Fig. 14, and finally clamp. them into position'with the stone, asshown in "Fig. 11, whereby the stone becomes set in the ring; it beingunderstood that all'of the plier triggersoperate radially, as indicatedin Fig. 15, with equalpressureand simultaneously. The up position of theyoke member 31, as indicatedby the'dotted position shown in Fig. .11,which corresponds to} Fig- 13, withdraws the plier tips 6 1 ofthe'triggers'63 and opens them up as shown in said Fig. 13.; It-willbehere noted that said yoke member 31 isfioatably cou pled with saidplunger member 26 through themedium of the yieldable coupling meanscarried on said plungerQG, to wit, the'coupiing stud 30 (Figs. 1 and 11)which issuplll) ncense plied with the expansion spring 82 which actsbetween the stud head and the iioatlng member 31 for trictionally'abutting said floating member 31 with said plunger member 26 in thenormal operations thereof. This floating feature is preferably providedin amachine, as herein disclosed, which is designed to work on differentsizes or stones.

Thus, as will be understood in the case or" Thus it will be observedthatwhile the ring chuck, which assumes the X posh t1on,as shown in Fig. 1,1s up and provided with the stone S, that thereafter the cam 29 drawsthe plunger 26 with its correlated yoke member 31- downward, therebyaffecting the set of triggermembers 63 by drawing the plier tips thereofin towards the center of the stone, and consequently bend over-the prongtips and sets them'withthe stone to permanently secure the stone 1n thea setting of the ring. With this operation completed the plunger'26 withthe yoke member 31 is caused to travel back up again, which opens up theplier "triggers and withdraws themfrom the ring. Thereaiter the ringchuck carrying the completed ring is-low- V ered on the decline providedtherefor on the cam-73, and'the chuck with the 'ringthereon is allowedto clear under the fixed'bracket 60, as can be noted from Fig, 1.- Withthe feeding the stone and setting the same in the ring, as hereln ustdescribed, are again repeated;

The diagram shown in Fig. at sets forth the cycle-of operations in themachine per revolution of the cam shaft 23, and serves to readilypresent the functions of the ma chine in their relative order.

It will be understood that the magazine tube i3 may be made ofsuiticientlength to accommodate a substantial number of stones therein, and thatiii-desired, the same may be readily removed from the magazine bracketby unscrewing the set screw as which will free the same and allow theremoval thereof from themagazine bracket. This'removable feature of themagazine the stone.

tube permits of replacing a tube adapted to contain stones or a diiicrent size, as may be requiredyit being understood that by properlyshaping the-cam tips of the plier triggers, the same set 01" triggerswill operate a variety oi sizes or ring settings without adjustment.

It will thus be understood that the machine may be employed for settingstones automatically in tinger rings which are fed to the ring chuckswhich are "carried on the turntable and advanced one by one to thesetting position, where the ring receives a single stone discharged fromthe magazine provided in themachine and where the stone is linally setin thering, after which operation the chuck is advanced by quarter turnsand brought around where the operator may remove the finished ringtherefrom and re-' place it with a setting which will pass through thewithin described-cycle or operations and be delivered with the stone setherein. V 1

The mechanism otthis device is exceedingly simple, and the operationsthereof are positive. The speed may be regulated to suit therequiren'ients or'the operator, and

various types and sizes of stones may be set .in correspondingly varioustypes and sizes of rings. The functions of the ma chine, with theexception of feeding the ring, are automatic and simple in everyrespect, so much so that any ordinary person may operate the machine.

The work of the machine in setting the stones is uniform and regular,and thus overcomes the need for accurate and expensive hand laborotherwise required for setting stones in finger rings, especially in thecase of the cheaper and less expensive types for which this machine ismore particularly intended. r

The work of bending over the tips of the ring prongs is relativelylight, and by providing plier triggers of hard metal a relatively smalldegree of pressure against said plier tips will be necessary toaccomplish theresult herein sought to'be obtained.

While I have shown the device herein designed to operate on a set offour ring chucks, it will be understood that by suitably designing andtiming the apparatus, a turntable with any suitable number of chucks maybe provided, more than the four chucks herein shown, or less, accordingas may be desired. Also, while I have shown a set of six plier triggersused in the machine, any other number may be e1nployed in a similarmanner it so desired.

The partsare simple and comparatively few in number, and as will beunderstood are absolutely positive in their operations. The machine maybe made to work as fast as human hands can receive the linger rings andfeed the same thereto; thus providing ainachine which is capable ofyielding a air ng-seine member adapted to contain a large output at svery 'sinnil xpense.

While the preferred embodiments of my invention have been described indetail, it

' will beunderstood that I do-not wish .to be -1innted to the partlculerconstruction set a forth; since various changes in the form;

. L111 av device of the character described a turntable ncinber providedwith a 111th 'a-lity oi ring chucks, each adapted to carry a ringsecured, thereto, said turntsd'ile being adapted to advanceseid.chucksin consecu- V t re order to the, setting position inthe device andlocking 8211116 therein during the sett ngoperation thereof; a magazinesuppl ed w th stones adopted to feed astone to e ch ring reaching. saidsetting position; and cluster of prong engaging triggers adapted to;simultaneously engage Withthe prongs of ssidr ng so supplied with thestone forbending the tips of said prongs over the stone to set some:securely with said ring i e 2. In :1 device of the characterdescribed,

a turntable member proyided with a circunr,

ferentia'l series of duplicate chuckmembers,

eaeh adeptcd to disengagedly engage a ring therefor; means foradvancingeach Oifseid chuck members to the stone receiving and settingposition in the machine and for lock ng thetu nteble. i said ad ancedp0- 7 s nce; ston maga in -pied to. red n V in the ring.

stone to thoring so advanced to the setting BQ l l; and mean o y el eblyengsglng molester of plier triggers with the t ps of the'prongs of thering i'oi receiving the stone ig'ed thereto by the magazine in set.relation intermittently operated rots-table Inenr ber'provided 'with icircumfeantial series of duplicate ring chucks carried therein endindependently operated therein; means for raising the chucltsni saidrotatable member to the setting position it stone feeding magazineprovided with tripper means. adapted to discharge a single stoneinto.

each of the rings carried in said ring chucks when the h tter areadvanced by said rotw table member and; raised into the setting positionby said chuck raising means; and a cluster of p-iier leversfcoupied tooperate similsrly and sin nltmieously against the ring prongs forsetting and securing the stone in the ring. 7

4. In i device of the character described n a: derlc of h Ch'ecterdescribed;

' Column, ofsepera e s ones placed. oneon t p of the other; and magazinetripper'fingersprovided with, trensvcrseend torkecl stone engaging endsadapted to 'commumcetewit-h the interior of said magezine memberindifierent I planes for engaging-"the bottom 7' 7 stone and the" oneadjacent the et said tripper fingers beiir udeptedto be actuatedalternately to discharge the bottom stone, and di charging end of saidmagazine. 2

5.. In a device of the character described,

'75; to advance the column of: stones. to the the combination of ringcinickinggm ens 7' adapted to secures ring" n the} Op position onsaidchuckingineensanl tocenter the ring in the setting position of thedevice; a magazine.mechanism adapted to deposit it stone in the ringsetting; and aplurality of radial bell ere-Ill: prong eng g ing'canisadapted to. be closed in-againstfl the prong tips for bending: the seineover onto the stone'to securesamein the setting ofthe ring. 7 1 ll.

In adevice of'the; character described, a, ring chuck mechanism adaptedto support a ring therein and positionthe'sernein the stone receivingand setting v positiom a, magazine. member; supplied with s onesadaptedo 'clischerge a singlestone t e ime f o s id maga i e endintothese ti g of the r ng, when. the afo esaid "chuckmechanism positions thering'in s id s one rec iving position; a cluster oi'radially pos ionedbel crank prong engsging earns supported on. fixed pivots and adapted toclose in on the s t ing of th ring for e ng; hep ss ti as over on thestone delivered .to'the rinuj V for; setting the same therein; anden ilituat ing yoke inernberndapted toqengage with each of said cams forSimultaneously perat-f ing the entire cluster to clear orj iengage" withthe plongs of the ring according as the mey b 741,11 devioeof thecharacter described an upright. magazine mernber carrying the supply ofstones there n in column fashion] and proyided with s set ofslternzitely oper eted Itripper" fingers adapted to allow the bottomstone to be seperatedfrom the others 7 in the column and to bedischarged from the insgztzlne-thereby; stationary trans verse bracketmember haying-2 central open ing therein centered Withsaid magazinemember and provided with a circumferena tial serles or" rediel'tr ggersupports pro:

ejecting from said trensyerse bracket and each trigger support pivotallysupporting;

therein lateral bell crank trigger provided with at cam tip on the innerarm of same for engaging with a prong-of the ring setting, and it forkedendgon the outer armof said bell crank a reciprocating yokeniernberencircling snidtriggers kind engaging with the forked sectionsthereof, for "interlocking therewith to actuate of the triggerssimultaneously; means for actuating said yoke member; a turntableprovided with a circumferential series of ring chucks each slidablymounted therein and adapted to p e brought intothe operating zone ofsaid magazine and stone setting mechanism and to be locked into saiddelivered position duringthe operations of the aforesaid mecha anisms;means for raising the ring chuck,

delivered to'the operating zone by said turntable,into the stonereceiving and setting position; and means for intermittently looking andangularly rotating said turntable.

8. In a device of the character described, an upright 'magazine membercarrying the ston supply therein in column fashion and provided with aset of alternately operated tripper fingers adapted to allow the bottomstone to be separated from the others in the column and to be dischargedfrom the maga zine thereby; a stationary, transverse bracket memberhavinga central opening therein centered with said magazine memberandprovided with a circumferential series of radial trigger supportsprojecting from said transverse bracket and each pivot ally supportingtherein a lateral bell crank trigger provided witha cam tip on the innermounted in said turntable and adapted to be brought into the operatingzone of said magazine and stone setting mechanisms and to be locked intosaid delivered position during the operations of the aforesaidmechanisms; means for raising the ring chuck, delivered to the operatingzone by said tur table, into the stone receiving and setting position;and means for intermittently locking and angularly rotating saidturntable.

9. In a device of the character described, a rotating member providedwith a circumferential series of ring chucks slidably mounted in saidrotating member and adapted to be carried around with said rotary memberto be set by same in the stone feeding and setting position of thedevice; means for intermittently advancing and locking said rotarymember with the advanced ring chuck in the stone feeding and settingposition; means for reciprocating said ring chuck so advanced to thestone receiving and setting position for temporarily"supporting the ringin close relation to the hereinafter mentioned stone feeding and settingmechanism of the device to be operated on by said mechanism; anautomatic stone feeding member adapted to discharge and deposit a stonewithin the setting of the ring; automatic plier cams adapted to engagewith the'prongs of the ring setting for bending the same over onto thestone for securing the same in the ring setting; and means for actuatingthe aforementioned operating elements in their timed relation to performthe functions herein described.

In testimony whereof, I hereunto ailix my signature this sixteenth da ofApril, 1920.

DOMENICO LOMBARDI. Witnesses CHARLES GRILLO, SPEoIoso Pnno'ro.

